diff --git a/Models/TicketMapper.php b/Models/TicketMapper.php
index bc7e8c1..158fd45 100644
--- a/Models/TicketMapper.php
+++ b/Models/TicketMapper.php
@@ -90,6 +90,11 @@ class TicketMapper extends DataMapperAbstract
     {
         try {
             $objId = parent::create($obj, $relations);
+
+            if($objId === null || !is_scalar($objId)) {
+                return $objId;
+            }
+
             $query = new Builder(self::$db);
 
             $query->prefix(self::$db->getPrefix())